• 520 Disorders of tooth development and eruption
  • 521 Diseases of hard tissues of teeth
  • 522 Diseases of pulp and periapical tissues
  • 523 Gingival and periodontal diseases
  • 524 Dentofacial anomalies including malocclusion
  • 525 Other diseases and conditions of the teeth and supporting structures
  • 526 Diseases of the jaws
  • 527 Diseases of the salivary glands
  • 528 Diseases of the oral soft tissues excluding lesions specific for gingiva and tongue
  • 529 Diseases and other conditions of the tongue